Audio Reverser
Play any audio backwards — free, instant, in your browser.
100% in your browser — nothing is uploaded
Audio Reverser
This free audio reverser plays a file backwards and lets you export the reversed version. It is a genuinely useful production tool rather than a novelty: reversed cymbals and reversed reverb are the standard way to build a riser into a chorus, reversed vocal fragments make texture that does not read as a recognisable word, and reversed piano or guitar produces the swelling attack you cannot get from playing the instrument forwards. It is also the fastest way to check a claim about backmasking in a record you own. Reversal is mathematically lossless — the samples are simply written in the opposite order — so nothing degrades, and the reversed file can be reversed again to return exactly to the original. What changes is the envelope: a piano note that starts with a sharp attack and decays slowly becomes a sound that swells from nothing and stops abruptly, which is why reversed material sounds otherworldly even when the pitch content is untouched. Everything runs locally with the Web Audio API, so nothing is uploaded.
How to use the free audio reverser
- 1
Load the audio
Drag in an MP3, WAV, M4A or FLAC file. It is decoded in your browser.
- 2
Reverse it
The samples are written in the opposite order — a lossless operation with no quality change.
- 3
Preview and export
Listen to the reversed version and download it, with no watermark and no account.
Made for AI music creators
Building a riser into a drop, making a swelling pad out of a piano chord, or checking a backmasking claim? Reverse the audio here and trim the useful part in the same browser session.
Audio Reverser: what people search for
Searched as an audio reverser, a reverse audio tool, a backwards music player, and as the plain request to play audio backwards or "play a song backwards". Producers arrive under the name of the technique instead — reverse reverb, riser, a reversed cymbal riser, backwards vocal — which describes what the reversed file is for rather than what the tool is.
Audio Reverser at a glance
- Runs
- Entirely in your browser
- Uploads
- None — files never leave your device
- Account
- Not required
- Cost
- Free, no watermark
- Output
- Lossless WAV where audio is exported
- Works offline
- After the page has loaded
Why it works this way
The audio reverser runs on your machine
This free audio reverser plays a file backwards and lets you export the reversed version. It is a genuinely useful production tool rather than a novelty: reversed cymbals and reversed reverb are the standard way to build a riser into a chorus, reversed vocal fragments make texture that does not read as a recognisable word, and reversed piano or guitar produces the swelling attack you cannot get from playing the instrument forwards.
A free audio reverser with no signup
Building a riser into a drop, making a swelling pad out of a piano chord, or checking a backmasking claim? Reverse the audio here and trim the useful part in the same browser session.
What the audio reverser handles
The cases people actually bring to it.
Load it into the audio reverser and export. The tool writes the samples in the opposite order in your browser — no upload, no account, and no loss of quality.
No. Reversal is lossless: the same samples are written backwards. Reversing a reversed file returns you exactly to the original, provided you export to a lossless format.
Reversed cymbals and reverb build risers into a chorus or drop, reversed reverb tails create a swell before a downbeat, and reversed instruments give an attack that grows from nothing. It is a standard transition technique rather than an effect.
Reverse the audio, add reverb to the reversed version, then reverse the result again. The reverb tail now runs backwards into the note, which is the classic swelling pre-echo you hear before a vocal entry.
Audio Reverser — frequently asked questions
How do I reverse an audio file?
Load it into the audio reverser and export. The tool writes the samples in the opposite order in your browser — no upload, no account, and no loss of quality.
Does reversing audio reduce quality?
No. Reversal is lossless: the same samples are written backwards. Reversing a reversed file returns you exactly to the original, provided you export to a lossless format.
How do producers use reversed audio?
Reversed cymbals and reverb build risers into a chorus or drop, reversed reverb tails create a swell before a downbeat, and reversed instruments give an attack that grows from nothing. It is a standard transition technique rather than an effect.
How do I make a reverse reverb effect?
Reverse the audio, add reverb to the reversed version, then reverse the result again. The reverb tail now runs backwards into the note, which is the classic swelling pre-echo you hear before a vocal entry.
Can I reverse only part of a song?
Trim the section you want first, reverse that, and join it back if needed. All three steps run locally in the browser.
What is backmasking?
Deliberately recording a message so it is audible only when the track is played backwards. Reversing a file you own is the quickest way to test whether a claimed example is real or an artefact of listening for it.
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Audio Reverser
Play any audio backwards — free, instant, in your browser.